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HGCal Test Beam DAQ

Contains the code used for the DAQ as well as extra code used to program FPGA's, check for cable disconnects, etc...

Installation

This entire folder should be copied to each Pi that is going to be used. The bcm2835 SPI C library source, ncurses source (for vim), and vim source are all included to be installed on each Pi. The software that is contained is installed using sudo ./install while inside the Pi_Software directory. To compile the system codes, run sudo ./compile [board type] from the System_Codes directory where [board type] is either sync or rdout.

Contents

HGCAL_2017_TB_DAQ_Test_V1/

Contains the first version of the DAQ code. This uses the Raspberry Pi as the DAQ instead of the IP bus.

System_Codes/

Contains code used for various tasks. This directory contains code than can be used on both types of boards as well as readout and sync board specific codes.

  • read_flash_memory:

    • Reads out all of the data stored in the flash memory.

  • program_fpga:

    • Writes a configuration file to the flash memory. This file is then used to configure the FPGA after a power cycle.
    • Usage: sudo ./program_fpga < {ENTER HEX FILE HERE}

  • pwr_cycle:

    • Power cycles an FPGA.

  • read_board_ID:

    • Reads the board ID as specified by the first 8 DIP switches.

  • set_IP_address:

    • Uses read_board_ID and set's the IP address to 192.168.222.xxx where xxx is the board ID.

  • get_board_type:

    • Reads the state of the last four DIP switches as well as the hardwired ones.

  • compile:

    • Compiles all of the files to their respective outputs.

System_Codes/RDOUT

System_Codes/SYNC

  • wiggle_mode:

    • Toggles the MODE pin on the Pi every half second.

  • check_cable_disconnect:

    • Displays the status of each HDMI cable as connected/disconnected.

  • run_on_boot:

    • Script that is run on boot. Checks for cable disconnects and the clear signal.

  • set_clk_delay:

    • Sets the clock delay of a given clock. The delay value supplied is in picoseconds.
    • Usage: sudo ./set_clk_delay [CLOCK NUMBER] [DELAY]

  • calibrate_clk_delays:

    • Sets all of the clock delays. The first clock delay is set to the delay value provided as the argument, and then lines up the rest of the clocks with the first one. The default delays must be measured first. The default delays (delays created due to path lengths) are specified in the DEFAULT_DELAYS array within the file. The delay value supplied is in picoseconds.
    • Usage: sudo ./calibrate_clk_delays [DELAY]

  • sync_flash.hex & sync_flash2.hex:

    • The hex files used to program an FPGA with the program_fpga routine. sync_flash2.hex is a compressed version of the firmware.

Pi_Software/

Contains software to be installed on each Raspberry Pi. Currently, the list is:

  • bcm2835 SPI C library
  • ncurses (for vim)
  • vim

To install, use sudo ./install

Other/

Contains other code and old versions of the DAQ.